ANTX · Insider Trading

AN2 Therapeutics, Inc. Common Stock

Every open-market purchase and sale reported by ANTX officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
1
code P
Sales
10
code S
Reporting Insiders
14
current holders
ANTX — Recent Form 4 Transactions (latest 2026-10-13)
FiledInsiderRole TypeSharesValue
2026-10-13 Patricia A. Martin Director A +389 —
2026-10-13 Gilbert Lynn Marks Director A +2,283 —
2026-10-13 Kabeer Aziz Director A +2,465 —
2026-09-16 Cameron C. Trenor III Chief Medical Officer A +116,667 —
2026-09-11 Robin Shane Readnour Director Sell −1,108 −$6.67K
2026-09-08 Robin Shane Readnour Director Sell −16,119 −$97.32K
2026-09-04 Sarah Joanne Williams Principal Accounting Officer Sell −272 −$1.50K
2026-09-02 Margaret M FitzPatrick Director Buy +2,098 +$11.60K
2026-08-19 Robin Shane Readnour Director Sell −35,402 −$212.70K
2026-08-14 Joseph S Zakrzewski Director G −405,880 —
2026-07-10 Gilbert Lynn Marks Director A +2,789 —
2026-07-10 Joshua M Eizen See Remarks Sell −5,945 −$24.80K
2026-07-10 Patricia A. Martin Director A +766 —
2026-07-10 Kabeer Aziz Director A +2,852 —
2026-06-02 Sarah Joanne Williams Principal Accounting Officer Sell −265 −$1.17K
2026-04-10 Gilbert Lynn Marks Director A +3,775 —
2026-04-10 Kabeer Aziz Director A +3,775 —
2026-04-10 Patricia A. Martin Director A +1,192 —
2026-03-23 Robin Shane Readnour Director MIXED — —
2026-03-23 Stephanie Wong Director MIXED — —
2026-03-23 Melvin K Spigelman Director MIXED — —
2026-03-23 Lucy Day Chief Financial Officer MIXED — —
2026-03-23 Margaret M FitzPatrick Director MIXED — —
2026-03-23 Eric Easom Chief Executive Officer MIXED — —
2026-03-23 Sanjay Chanda Chief Development Officer MIXED — —
2026-03-23 Joseph S Zakrzewski Director MIXED — —
2026-03-23 Gilbert Lynn Marks Director MIXED — —
2026-03-23 Patricia A. Martin Director MIXED — —
2026-03-23 Kabeer Aziz Director MIXED — —
2026-03-23 Joshua M Eizen See Remarks MIXED — —
2026-03-05 Sarah Joanne Williams Principal Accounting Officer Sell −327 −$347
2026-02-23 Gilbert Lynn Marks Director A +20,400 deriv. —
2026-02-23 Robin Shane Readnour Director A +20,400 deriv. —
2026-02-23 Melvin K Spigelman Director A +20,400 deriv. —
2026-02-23 Joseph S Zakrzewski Director A +20,400 deriv. —
2026-02-23 Margaret M FitzPatrick Director A +20,400 deriv. —
2026-02-23 Sarah Joanne Williams Principal Accounting Officer A +48,375 —
2026-02-23 Patricia A. Martin Director A +20,400 deriv. —
2026-02-23 Joshua M Eizen See Remarks A +50,000 —
2026-02-23 Stephanie Wong Director A +20,400 deriv. —
2026-02-23 Kabeer Aziz Director A +20,400 deriv. —
2026-02-23 Lucy Day Chief Financial Officer A +38,000 —
2026-02-23 Eric Easom Chief Executive Officer A +112,250 —
2026-02-23 Sanjay Chanda Chief Development Officer A +38,000 —
2026-01-14 Patricia A. Martin Director A +3,650 —
2026-01-14 Kabeer Aziz Director A +11,560 —
2026-01-14 Gilbert Lynn Marks Director A +11,560 —
2026-01-07 Joshua M Eizen See Remarks Sell −24,854 −$24.96K
2026-01-07 Lucy Day Chief Financial Officer Sell −8,807 −$8.88K
2026-01-07 Sanjay Chanda Chief Development Officer Sell −9,251 −$9.33K
ANTX — Current Insider Holders
InsiderRole Shares HeldValue
Braden Michael Leonard 10%+ Owner 3,017,432 $10.95M
Kabeer Aziz Director 2,057,529 $7.47M
Eric Easom Chief Executive Officer 1,434,396 $5.21M
Robin Shane Readnour Director 633,842 $2.30M
Joshua M Eizen See Remarks 206,554 $749.79K
Joseph S Zakrzewski Director 145,538 $528.30K
Sanjay Chanda Chief Development Officer 118,823 $431.33K
Lucy Day Chief Financial Officer 118,363 $429.66K
Cameron C. Trenor III Chief Medical Officer 116,667 $423.50K
Gilbert Lynn Marks Director 84,156 $305.49K
Sarah Joanne Williams Principal Accounting Officer 66,311 $240.71K
Stephen David Prior Chief Strategy Officer 61,944 $224.86K
Patricia A. Martin Director 19,252 $69.88K
Margaret M FitzPatrick Director 10,708 $38.87K
ANTX Insider Trading FAQ
Who are the insiders at ANTX?
14 officers, directors and 10%+ beneficial owners currently report holdings in ANTX via SEC Form 4.
Are ANTX insiders buying or selling?
Across the 50 most recent Form 4 filings for ANTX, 1 were open-market purchases (code P) and 10 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is ANTX insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent ANTX filing is dated 2026-10-13.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the ANTX quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.